Change the print preview UI to use the material design style buttons for zoom

This changes print preview to use the material buttons for zooming. It also
reconciles the codepaths so that print preview uses the same codepath as
the material design viewer which will allow us to remove a bunch of code once
the material UI is switched on by default.

BUG=

Review URL: https://codereview.chromium.org/1332273003

Cr-Commit-Position: refs/heads/master@{#349371}

1 files changed, 8 insertions, 14 deletions

diff --git a/pdf/out_of_process_instance.cc b/pdf/out_of_process_instance.cc
index 6ab52be..0c0124e 100644
--- a/pdf/out_of_process_instance.cc
+++ b/pdf/out_of_process_instance.cc
@@ -53,10 +53,6 @@ const char kAccessibleNumberOfPages[] = "numberOfPages";
 const char kAccessibleLoaded[] = "loaded";
 const char kAccessibleCopyable[] = "copyable";
 
-// PDF background colors.
-const uint32 kBackgroundColor = 0xFFCCCCCC;
-const uint32 kBackgroundColorMaterial = 0xFF525659;
-
 // Constants used in handling postMessage() messages.
 const char kType[] = "type";
 // Viewport message arguments. (Page -> Plugin).
@@ -281,7 +277,7 @@ OutOfProcessInstance::OutOfProcessInstance(PP_Instance instance)
       received_viewport_message_(false),
       did_call_start_loading_(false),
       stop_scrolling_(false),
-      background_color_(kBackgroundColor),
+      background_color_(0),
       top_toolbar_height_(0) {
   loader_factory_.Initialize(this);
   timer_factory_.Initialize(this);
@@ -350,24 +346,22 @@ bool OutOfProcessInstance::Init(uint32_t argc,
   const char* stream_url = nullptr;
   const char* original_url = nullptr;
   const char* headers = nullptr;
-  bool is_material = false;
   for (uint32_t i = 0; i < argc; ++i) {
+    bool success = true;
     if (strcmp(argn[i], "src") == 0)
       original_url = argv[i];
     else if (strcmp(argn[i], "stream-url") == 0)
       stream_url = argv[i];
     else if (strcmp(argn[i], "headers") == 0)
       headers = argv[i];
-    else if (strcmp(argn[i], "is-material") == 0)
-      is_material = true;
+    else if (strcmp(argn[i], "background-color") == 0)
+      success = base::HexStringToUInt(argv[i], &background_color_);
     else if (strcmp(argn[i], "top-toolbar-height") == 0)
-      base::StringToInt(argv[i], &top_toolbar_height_);
-  }
+      success = base::StringToInt(argv[i], &top_toolbar_height_);
 
-  if (is_material)
-    background_color_ = kBackgroundColorMaterial;
-  else
-    background_color_ = kBackgroundColor;
+    if (!success)
+      return false;
+  }
 
   if (!original_url)
     return false;