Miscellaneous small documentation fixes.

Most of these I noticed on my own. The change to docs/html/tools/testing/testing_ui.jd is mentioned in a bug report:
https://code.google.com/p/android/issues/detail?id=56324

Signed-off-by: Mark Doliner <markdoliner@google.com>
diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index d6db8c2..10ef535 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -816,7 +816,7 @@
     }
 
     /**
-     * Return the LoaderManager for this fragment, creating it if needed.
+     * Return the LoaderManager for this activity, creating it if needed.
      */
     public LoaderManager getLoaderManager() {
         if (mLoaderManager != null) {
diff --git a/core/java/android/content/Loader.java b/core/java/android/content/Loader.java
index 911e49c..a045b3a 100644
--- a/core/java/android/content/Loader.java
+++ b/core/java/android/content/Loader.java
@@ -24,7 +24,7 @@
 import java.io.PrintWriter;
 
 /**
- * An abstract class that performs asynchronous loading of data. While Loaders are active
+ * A class that performs asynchronous loading of data. While Loaders are active
  * they should monitor the source of their data and deliver new results when the contents
  * change.  See {@link android.app.LoaderManager} for more detail.
  *
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index b0bae46..83610c3c 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -11838,7 +11838,7 @@
     }
 
     /**
-     * <p>Compute the vertical extent of the horizontal scrollbar's thumb
+     * <p>Compute the vertical extent of the vertical scrollbar's thumb
      * within the vertical range. This value is used to compute the length
      * of the thumb within the scrollbar's track.</p>
      *
diff --git a/core/java/android/widget/AdapterView.java b/core/java/android/widget/AdapterView.java
index a5fad60..a06344f 100644
--- a/core/java/android/widget/AdapterView.java
+++ b/core/java/android/widget/AdapterView.java
@@ -663,7 +663,7 @@
 
     /**
      * When the current adapter is empty, the AdapterView can display a special view
-     * call the empty view. The empty view is used to provide feedback to the user
+     * called the empty view. The empty view is used to provide feedback to the user
      * that no data is available in this AdapterView.
      *
      * @return The view to show if the adapter is empty.
diff --git a/docs/html/guide/topics/manifest/activity-element.jd b/docs/html/guide/topics/manifest/activity-element.jd
index 8df1fdf..eabfa60 100644
--- a/docs/html/guide/topics/manifest/activity-element.jd
+++ b/docs/html/guide/topics/manifest/activity-element.jd
@@ -580,7 +580,7 @@
   <a href="#nm"><code>android:name</code></a> attribute.
 
 <p>The system reads this attribute to determine which activity should be started when
-  the use presses the Up button in the action bar. The system can also use this information to
+  the user presses the Up button in the action bar. The system can also use this information to
   synthesize a back stack of activities with {@link android.app.TaskStackBuilder}.</p>
 
 <p>To support API levels 4 - 16, you can also declare the parent activity with a {@code
diff --git a/docs/html/tools/testing/testing_ui.jd b/docs/html/tools/testing/testing_ui.jd
index 701415e..4318a21 100644
--- a/docs/html/tools/testing/testing_ui.jd
+++ b/docs/html/tools/testing/testing_ui.jd
@@ -90,7 +90,7 @@
          alt="User interface of uiautomatorviewer tool" height="327px" id="figure1"/>
 </a>
 <p class="img-caption">
-    <strong>Figure 1.</strong> The {@code uiautomatorviewer} showing the captured interface of a test deviice.
+    <strong>Figure 1.</strong> The {@code uiautomatorviewer} showing the captured interface of a test device.
 </p>
 
 <p>To analyze the UI components of the application that you want to test:</p>